/*
 * Copyright 2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.kotlin.dsl.tooling.builders

import org.gradle.integtests.fixtures.executer.GradleDistribution
import org.gradle.integtests.tooling.fixture.ToolingApiAdditionalClasspathProvider
import org.gradle.integtests.tooling.fixture.ToolingApiDistribution
import org.gradle.util.GradleVersion


/**
 * Provides TAPI client additional classpath as found in Kotlin IDEs.
 */
class KotlinDslToolingModelsClasspathProvider implements ToolingApiAdditionalClasspathProvider {

    @Override
    List<File> additionalClasspathFor(ToolingApiDistribution toolingApi, GradleDistribution gradle) {
        List<String> jarPrefixes = jarPrefixesFor(toolingApi.version)
        return gradle.gradleHomeDir.file("lib").listFiles().findAll { file ->
            jarPrefixes.any { file.name.startsWith(it) }
        }.tap { classpath ->
            assert classpath.size() >= 3
        }
    }

    private static List<String> jarPrefixesFor(GradleVersion tapiVersion) {
        if (tapiVersion >= GradleVersion.version("6.0")) {
            return ["gradle-kotlin-dsl-", "kotlin-stdlib-"]
        }
        return ["gradle-kotlin-dsl-", "kotlin-stdlib-", "gradle-tooling-api-"]
    }
}
